Effect of Uniform Strain on Graphene Surface Plasmon Excitations

This paper reports a study of the reflectance optical sensors based on graphene under uniform strain. Assuming layer is surrounded by two different semi-infinite dielectric media, generalized Fresnel coefficients are derived as function usual quantities (e.g., constants, incident angles, and strain) anisotropic conductivity. The strain not only changes electronic band structure but also can be employed to tune collective excitations (plasmons) thus monolayers. One most common techniques for plasmon excitation Kretschmann configuration. It observation sharp minimum in reflection coefficient versus angle (or wavelength) curve. Because induces anisotropy conductivity strain-dependent orientation plays an important role manipulate variation energy, which may useful synchronize properties plasmonic devices enhance light-matter interactions.